modified vs altered

modified and altered both are adjectives.

Word	Noun	Adjective	Verb	Adverb
modified	No	Yes	No	No
altered	No	Yes	No	No

modified (adjective)	altered (adjective)
changed in form or character	changed in form or character without becoming something else
mediocre	having testicles or ovaries removed
	changed in order to improve or made more fit for a particular purpose